The Kids Are Walking Out

4. Granny. Panties.

"Undies, make sure you go the granny pair because you've got to fit an enormous pad in there. Plus if you've got a Cesarean section wound, normal knickers, the top hem kind of rests right on where the cut is," she said.

Judd admitted to making this mistake when she gave birth to her twin boys Tom and Darcy.

"I just packed my normal knickers and it was so painful because the top band was digging in to the bleeding wound. So you really need to take the big high-waisted ones," she said.

"And go a couple of sizes bigger because you're swollen."

Breastfeeding tops with flaps such as this are also a great idea. (Source: iStock.)

5. Breastfeeding tops (with buttons or flaps).

Cath and Bec both recommended expectant mums bring in a few breastfeeding tops to ease those first days of feeding.

"These days, you can get some really fabulous breastfeeding tops. They're not that expensive," Cath said.

"Look for anything you can button down easily," Bec added.

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6. Multiple maternity bras.

Bec recommended mums pack multiple bras as they are easily dirtied and difficult to clean.

"They get dirty really easily because when your milk is coming in, it leaks everywhere and they get really wet and soggy," she said.